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Berserk99

Member

From: Athens, Greece

Registered: 2024-01-12

Posts: 3

[KDE] duplicated first keystroke on application launcher's search bar

After every fresh boot, my first keystroke on the search bar of application launcher is always duplicated. This always happens for exactly the first keystroke and never again until the system shuts down.
Anyone else having this minor annoyance?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,076

Re: [KDE] duplicated first keystroke on application launcher's search bar

Can't say I have. is there more data to this? Is this a wireless keyboard and it might just be a buffer from a power save wakeup? Is it JUST in the search bar or does that just happen to be the first thing you usually invoke? Does waiting a bit longer work? Do you not see the dupe event in

sudo libinput debug-events

Berserk99

Member

From: Athens, Greece

Registered: 2024-01-12

Posts: 3

Re: [KDE] duplicated first keystroke on application launcher's search bar

Is this a wireless keyboard and it might just be a buffer from a power save wakeup?

No, it is not a wireless keyboard, I also tested the keyboard on a laptop that I happen to have with Manjaro + KDE installed and I couldn't replicate this behavior.

I also did multiple tests to answer your other questions.

Is it JUST in the search bar or does that just happen to be the first thing you usually invoke?

It seems to be just that search bar. If the search bar of the application launcher is invoked before any other KDE search bars are used, then the behavior is consistent and the duplicated keystroke on the first key will always appear. However, if I invoke other search bars first (ex. Krunner's search bar or System Setting's search bar) and then I invoke the application launcher's search bar, the behavior is inconsistent. On the Krunner test (startup then Krunner and then application launcher), no duplicated keystroke appeared in any of the search bars. On the System Setting's test (startup then System Settings and then application launcher), no duplicated keystroke appeared in the System Setting's search bar, but it did appear on the application launcher's search bar. Those tests were also performed in my laptop with that specific keyboard and no duplicated keystroke appeared anywhere.

Does waiting a bit longer work?

No, even if I wait a couple of minutes, if the application launcher's search bar is the first KDE search bar to be invoked after the system startup, then the behavior is consistent.

Also, the duplicated event does not appear in libinput. After a system startup I opened a console and left libinput running, then I opened the application launcher's search bar, then I pressed a button and it did appear twice. This was the output of libinput:

-event1   DEVICE_ADDED                 Power Button                      seat0 default group1  cap:k
-event0   DEVICE_ADDED                 Power Button                      seat0 default group2  cap:k
-event2   DEVICE_ADDED                 2.4G Mouse                        seat0 default group3  cap:k
-event5   DEVICE_ADDED                 2.4G Mouse                        seat0 default group3  cap:p left scroll-nat scroll-button
-event6   DEVICE_ADDED                 2.4G Mouse Consumer Control       seat0 default group3  cap:kp scroll-nat
-event8   DEVICE_ADDED                 2.4G Mouse System Control         seat0 default group3  cap:k
-event3   DEVICE_ADDED                 SEMICO USB Keyboard               seat0 default group4  cap:k
-event9   DEVICE_ADDED                 SEMICO USB Keyboard System Control seat0 default group4  cap:k
-event7   DEVICE_ADDED                 SEMICO USB Keyboard Consumer Control seat0 default group4  cap:kp scroll-nat
-event11  DEVICE_ADDED                 Eee PC WMI hotkeys                seat0 default group5  cap:k
-event3   KEYBOARD_KEY                 +0.000s	KEY_LEFTMETA (125) pressed
 event3   KEYBOARD_KEY                 +0.048s	KEY_LEFTMETA (125) released
 event3   KEYBOARD_KEY                 +3.000s	*** (-1) pressed
 event3   KEYBOARD_KEY                 +3.024s	*** (-1) released